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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2305.03700 |
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| _version_ | 1866911472327589888 |
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| author | Agrawal, Ankur Dixit, Akash V. Roy, Tanay Chakram, Srivatsan He, Kevin Naik, Ravi K. Schuster, David I. Chou, Aaron |
| author_facet | Agrawal, Ankur Dixit, Akash V. Roy, Tanay Chakram, Srivatsan He, Kevin Naik, Ravi K. Schuster, David I. Chou, Aaron |
| contents | The manipulation of quantum states of light has resulted in significant advancements in both dark matter searches and gravitational wave detectors [1-4]. Current dark matter searches operating in the microwave frequency range use nearly quantum-limited amplifiers [3, 5, 6]. Future high frequency searches will use photon counting techniques [1] to evade the standard quantum limit. We present a signal enhancement technique that utilizes a superconducting qubit to prepare a superconducting microwave cavity in a non-classical Fock state and stimulate the emission of a photon from a dark matter wave. By initializing the cavity in an $|n=4\rangle$ Fock state, we demonstrate a quantum enhancement technique that increases the signal photon rate and hence also the dark matter scan rate each by a factor of 2.78. Using this technique, we conduct a dark photon search in a band around $\mathrm{5.965\, GHz \, (24.67\, μeV)}$, where the kinetic mixing angle $ε\geq 4.35 \times 10^{-13}$ is excluded at the $90\%$ confidence level. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_03700 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Stimulated emission of signal photons from dark matter waves Agrawal, Ankur Dixit, Akash V. Roy, Tanay Chakram, Srivatsan He, Kevin Naik, Ravi K. Schuster, David I. Chou, Aaron Quantum Physics High Energy Physics - Experiment The manipulation of quantum states of light has resulted in significant advancements in both dark matter searches and gravitational wave detectors [1-4]. Current dark matter searches operating in the microwave frequency range use nearly quantum-limited amplifiers [3, 5, 6]. Future high frequency searches will use photon counting techniques [1] to evade the standard quantum limit. We present a signal enhancement technique that utilizes a superconducting qubit to prepare a superconducting microwave cavity in a non-classical Fock state and stimulate the emission of a photon from a dark matter wave. By initializing the cavity in an $|n=4\rangle$ Fock state, we demonstrate a quantum enhancement technique that increases the signal photon rate and hence also the dark matter scan rate each by a factor of 2.78. Using this technique, we conduct a dark photon search in a band around $\mathrm{5.965\, GHz \, (24.67\, μeV)}$, where the kinetic mixing angle $ε\geq 4.35 \times 10^{-13}$ is excluded at the $90\%$ confidence level. |
| title | Stimulated emission of signal photons from dark matter waves |
| topic | Quantum Physics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2305.03700 |